Nidec & Control Techniques Commander S, SE, SX, SK & SP Drive
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Apr 06, 2024 5:30 am
Cause : AC voltage input phase loss or large supply imbalance detected comes when the DC bus ripple exceeds a pre-defined level due to one (or more) of the input phases were lost or large imbalance of voltage exists on the input of the drive.
- Ensure all three phases are present and balanced.
- Check input voltage levels are correct (at full load).
